The constraints imposed by nucleation kinetics are taken into account in calculations of the condensation of sulfide phases from a gas of solar composition. Troilite will condense from a gas supersaturated with respect to metallic iron at temperatures which are much higher than from a gas at equilibrium with iron. In a solar gas at relatively high pressures, where we postulate that the precursors of the enstatite chondrites form, liquid troilite is condensed. At lower pressures of a solar gas, where we postulate that the precursors of the ordinary chondrites form, solid troilite is condensed. The solid does nob accommodate significant amounts of some sulfides in solid solution at activities less than unity and some chalcophilic elements will not tend to co-condense. On the other hand, liquid troilite can accommodate significant concentrations of sulfides in solution at activities less than unity and other chalcophile elements will co-condense. The apparently anomalous differences in the content of some chalcophile elements which have been observed between the enstatite and ordinary chondrites and the occurrence of oldhamite and niningerite are consistent with our calculations. Some implications and predictions concerning the genesis of sulfide and metal phases which result from our calculations will be discussed.